1'use strict'; 2 3require('../common'); 4 5// Verifies that setting up two observers to listen 6// to gc performance does not crash. 7 8const { 9 PerformanceObserver, 10} = require('perf_hooks'); 11 12// We don't actually care if the callback is ever invoked in this test 13const obs = new PerformanceObserver(() => {}); 14const obs2 = new PerformanceObserver(() => {}); 15 16obs.observe({ type: 'gc' }); 17obs2.observe({ type: 'gc' }); 18